Insertion rod type temperature controller

Abstract

The utility model discloses an inserting rod type temperature controller, which comprises a lower base, a temperature adjusting nut, a nickel rod, a pressure bearing plate, a pin and a spring, when a temperature sensing cylinder expands and extends or shrinks and shortens along with the temperature rise or reduction, the nickel iron rod and the temperature adjusting nut which can be regarded not to expand and shrink are driven to move downwards or upwards at the same time; the bearing plate swings up and down by taking the first fulcrum as a fulcrum; in the swinging process of the bearing plate, the rear end of the bearing plate presses down the pin, the pin presses down the spring, when the bearing plate does not press down the pin, under the action of the spring, the pin jacks up the bearing plate again, and due to the fact that the compression amount of the pin pressing down the spring is freely adjustable, different action temperatures of the temperature controller can be accurately set.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature controllers, in particular to a plug-in type temperature controller. Background Art

[0002] The plug-in type thermostat is used for heating control and over-temperature protection of electric water heaters. It senses the rise and fall of water temperature inside the water tank through a plug-in rod assembly composed of a temperature sensing tube and a nickel rod with two different expansion coefficients to generate expansion or contraction to make a set of switches open and close, thereby achieving temperature control. The bimetallic disc suddenly jumps and flips to push another set of switches to open to achieve over-temperature protection. The temperature value that the existing plug-in type thermostat needs to sense is related to the length of the plug-in rod assembly. Therefore, when multiple different temperature values ​​need to be sensed, multiple plug-in rod assemblies of different lengths need to be prepared, which brings inconvenience to use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model embodiment proposes a plug-in type temperature controller, including a lower base, a temperature regulating nut, a nickel rod, and a pressure plate, one end of the pressure plate is equipped with a push rod, a moving contact piece is arranged below the push rod, and an energy storage spring piece is arranged on the upper part of the moving contact piece, and a first fulcrum and a second fulcrum are arranged on the pressure plate, the nickel rod passes through the first fulcrum, the temperature regulating nut is installed on the top of the nickel rod, and the temperature regulating nut is located above the pressure plate; a pin is arranged between the other end of the pressure plate and the lower base, a spring is mounted on the pin, the spring presses toward the lower base, and the pin supports the second fulcrum.

[0004] The utility model has at least the following beneficial effects:

[0005] When the temperature-sensing tube expands and lengthens or contracts and shortens as the temperature rises or drops, it drives the nickel-iron rod and the temperature-adjusting nut, which can be regarded as not expanding or contracting, to move downward or upward at the same time, so that the pressure plate swings up and down with the first fulcrum as the fulcrum; during the swinging process of the pressure plate, the rear end of the pressure plate presses down the pin, and the pin presses down the spring. When the pressure plate does not press down the pin, the pin pushes up the pressure plate again under the action of the spring. Since the compression amount of the pin pressing down the spring is arbitrarily adjustable, the different action temperatures of the thermostat can be accurately set.

[0006] According to some embodiments of the utility model, it also includes a reset rod and a bimetallic strip, the reset rod and the bimetallic strip are sequentially sleeved on the nickel rod, the two sides of the reset rod are symmetrically connected with a first connecting piece and a second connecting piece, the first connecting piece is riveted with a first bent terminal, and the second connecting piece is riveted with a second bent terminal.

[0007] According to some embodiments of the present invention, a static contact piece is provided below one end of the first connecting piece, and the dynamic contact piece is provided below the end of the static contact piece.

[0008] According to some embodiments of the present invention, a first terminal is provided below one end of the second connecting piece.

[0009] According to some embodiments of the present invention, the movable contact piece is riveted with a second terminal.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0012] Figure 1 It is a schematic diagram of an overall cross-section of an embodiment of the utility model;

[0013] Figure 2 The overall schematic diagram of the embodiment of the utility model Figure 1 ;

[0014] Figure 3 The overall schematic diagram of the embodiment of the utility model Figure 2 . DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present utility model, the meaning of "a plurality" is more than two, and "greater than", "less than", "exceed" etc. are understood to exclude the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0018] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0019] Reference Figures 1 to 3 As shown, a plug-in type temperature controller includes a lower base 100, a temperature regulating nut 200, a nickel rod 300, and a pressure plate 500. A push rod 600 is installed at one end of the pressure plate 500, a moving contact piece 700 is arranged below the push rod 600, and an energy storage spring piece 710 is arranged on the upper part of the moving contact piece 700. A first fulcrum 510 and a second fulcrum 520 are arranged on the pressure plate 500. The nickel rod 300 passes through the first fulcrum 510. The temperature regulating nut 200 is installed on the top of the nickel rod 300, and the temperature regulating nut 200 is located above the pressure plate 500; a pin 530 is arranged between the other end of the pressure plate 500 and the lower base 100, and a spring 540 is mounted on the pin 530. The spring 540 presses against the lower base 100, and the pin 530 supports the second fulcrum 520.

[0020] When the temperature-sensing tube 400 expands and lengthens or contracts and shortens as the temperature rises or decreases, the nickel-iron rod and the temperature-adjusting nut 200, which can be regarded as not expanding or contracting, are driven to move downward or upward at the same time, so that the pressure plate 500 swings up and down with the first fulcrum 510 as the fulcrum; during the swinging process of the pressure plate 500, the rear end of the pressure plate 500 presses down the pin 530, and the pin 530 presses down the spring 540. When the pressure plate 500 does not press down the pin 530, the pin 530 pushes up the pressure plate 500 again under the action of the spring 540. Since the compression amount of the pin 530 pressing down the spring 540 is arbitrarily adjustable, different operating temperatures of the thermostat can be accurately set.

[0021] Reference Figure 1 , further comprising a reset rod 800 and a bimetallic strip 900, the reset rod 800 and the bimetallic strip 900 are sequentially sleeved on the nickel rod 300, the first connecting piece 1000 and the second connecting piece 2000 are symmetrically connected on both sides of the reset rod 800, the first connecting piece 1000 is riveted with a first bent terminal 3000, and the second connecting piece 2000 is riveted with a second bent terminal 4000. An external power source is connected through the first terminal 6000 and the second terminal 7000.

[0022] A static contact piece 5000 is provided below one end of the first connecting piece 1000, and a moving contact piece 700 is provided below the end of the static contact piece 5000. When the moving contact just leaves the static contact under the action of the push rod 600, an operating temperature of the thermostat is set.

[0023] A first terminal 6000 is provided below one end of the second connecting piece 2000 , and the second terminal 7000 is riveted to the moving contact piece 700 , and electricity is connected through the first terminal 6000 and the second terminal 7000 .

[0024] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A plug-in type thermostat, comprising a lower base (100), a temperature adjustment nut (200), a nickel rod (300), and a temperature sensing tube (400), characterized in that: It also includes a pressure plate (500), one end of which is provided with a push rod (600), a movable contact piece (700) is provided below the push rod (600), an energy storage spring piece (710) is provided on the upper part of the movable contact piece (700), a first fulcrum (510) and a second fulcrum (520) are provided on the pressure plate (500), the nickel rod (300) passes through the first fulcrum (510), the temperature regulating nut (200) is installed on the top of the nickel rod (300), and the temperature regulating nut (200) is located above the pressure plate (500); A pin (530) is provided between the other end of the pressure plate (500) and the lower base (100), and a spring (540) is mounted on the pin (530). The spring (540) presses toward the lower base (100), and the pin (530) supports the second fulcrum (520).

2. The plug-in type thermostat according to claim 1, characterized in that: It also comprises a reset rod (800) and a bimetallic strip (900), wherein the reset rod (800) and the bimetallic strip (900) are sequentially sleeved on the nickel rod (300), and the two sides of the reset rod (800) are symmetrically connected with a first connecting piece (1000) and a second connecting piece (2000), wherein the first connecting piece (1000) is riveted with a first bent terminal (3000), and the second connecting piece (2000) is riveted with a second bent terminal (4000).

3. The plug-in type thermostat according to claim 2, characterized in that: A stationary contact piece (5000) is provided below one end of the first connecting piece (1000), and the moving contact piece (700) is provided below the end of the stationary contact piece (5000).

4. The plug-in type thermostat according to claim 2, characterized in that: A first terminal (6000) is provided below one end of the second connecting piece (2000).

5. The plug-in type thermostat according to claim 3, characterized in that: The movable contact piece (700) is riveted with a second terminal (7000).

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